39749342 has 8 divisors (see below), whose sum is σ = 59745000. Its totient is φ = 19834344.

The previous prime is 39749341. The next prime is 39749351. The reversal of 39749342 is 24394793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 39749342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39749341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18917 + ... + 20912.

It is an arithmetic number, because the mean of its divisors is an integer number (7468125).

Almost surely, 2^39749342 is an apocalyptic number.

39749342 is a deficient number, since it is larger than the sum of its proper divisors (19995658).

39749342 is a wasteful number, since it uses less digits than its factorization.

39749342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40330.

The product of its digits is 163296, while the sum is 41.

The square root of 39749342 is about 6304.7079234490. The cubic root of 39749342 is about 341.2793266893.

The spelling of 39749342 in words is "thirty-nine million, seven hundred forty-nine thousand, three hundred forty-two".